Premium
High Pressure Synthesis of the Cation‐ordered Perovskite 3C 1:2 ‐Ba 3 NaRu 2 O 9
Author(s) -
ArevaloLopez Angel M.,
Senn Mark S.,
Skedd Lauren,
Attfield J. Paul
Publication year - 2014
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201300549
Subject(s) - perovskite (structure) , paramagnetism , crystallography , hexagonal crystal system , space group , materials science , chemistry , condensed matter physics , physics , x ray crystallography , diffraction , optics
The new phase 3C 1:2 ‐Ba 3 NaRu 2 O 9 was synthesized by heating the hexagonal perovskite 6H‐Ba 3 NaRu 2 O 9 at 900 °C under a pressure of 9 GPa. 3C 1:2 ‐Ba 3 NaRu 2 O 9 adopts the 1:2 B site‐ordered cubic perovskite type structure [space group P $\bar{3}$ m 1, cell parameters a = 5.8068(3) and c = 7.0652(5) Å] but a significant cation inversion between Na and Ru sites is found. No magnetic ordering transition is observed down to 2 K and 3C 1:2 ‐Ba 3 NaRu 2 O 9 displays Pauli paramagnetism indicative of a metallic oxide with strong electron‐electron correlations.